OpenDCL Studio v.7.0.0.2 DevelOpenDCL is a handy, easy-to-use and accessible insturment that is specially designed for AutoLISP programmers that want to replace AutoCAD's limited DCL.
They can replace the Dialog Control Language with a rich set of modern Windows user interface ...

VectPDF v.1.6 AlphaVectPDF was built as a front-end to pstoedit for AutoCAD that allows you to insert PDFs into an AutoCAD open drawing.
VectPDF is an Autolisp/Visual Lisp Application For AutoCad to load a Selected PDF file with PSTOEDIT, convert to single-line DXF, ...